Check out samples from book: http: //osos.sweb.cz/preview-ukulele.pdf These patterns were used in musical style Boogie wogie. They were played by piano or double bass. When you listen to these patterns you will find that lot of them were transformed and came to rock, funky and similar styles. So you can use them in your own pieces. This book is such a cookbook suitable for creative musicians who do not want to accompany by ukulele using just strumming. How to practise is shown at the end of the book on my compositions. Have a nice playing and discovering new music options